英文關鍵字
alloy
automated
bit
carbide
close
cnc
construction
cut
cutter
device
drill
drilling
engineering
equipment
factory
hole
industrial
industry
instrument
job
lathe
machine
machinery
machining
macro
manufacture
manufacturing
metal
metall
metalwork
metalworking
mill
milling
motion
plant
precision
press
processing
production
sharp
slow
steel
technology
tool
turning
work
workpiece
workshop